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The zone above the water table, in which water is absent, is the:

A beach with a small berm, coarser sediment, and offshore sand bars is a:

The general term for deposits of calcite and/or aragonite within caves is:

The Dakota Sandstone is threatened primarily by:

The process of encroachment/invasion of deserts into regions that were once productive is termed as?

What is a fiord, and how does one form?

The approximate percentage of the Earth’s surface that is covered by water is about:

A lake formed within a cirque is called a(n):

Groundwater erupting from geysers that contain dissolved calcium carbonate will form deposits of:

The percentage of the Earth’s water that is fresh water that is not frozen is: